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Oklo and Siemens Energy Sign Agreement to Accelerate Power Conversion System for New SMR in Idaho

LCG, November 19, 2025--Oklo Inc. and Siemens Energy announced today that the parties have signed a binding contract for the design and delivery of the power conversion system for Oklo’s Aurora-INL (Idaho National Laboratory) nuclear small modular reactor (SMR). The agreement authorizes Siemens Energy to begin engineering and design work to expedite procurement of long-lead components and to initiate the manufacturing process for the power conversion system. Oklo’s expertise in advanced fission technology will be combined with Siemens Energy’s extensive industry experience with steam turbine and generator systems, with the ultimate goal of generating carbon-free, reliable electricity.

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NERC's New Winter Reliability Assessment Raises Concerns for Elevated Risk of Insufficient Supplies to Meet Demand in Extreme Operating Conditions

LCG, November 19, 2025--NERC yesterday released its 2025–2026 Winter Reliability Assessment (WRA), which concludes "much of North America is again at an elevated risk of having insufficient energy supplies to meet demand in extreme operating conditions." The WRA does state that resources are adequate for normal winter peak demand, but extended, wide-area cold snaps will be challenging.

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Industry News

'Loose Parts' Force Palisades Shutdown

LCG, Sept. 6, 2000The 740 megawatt Palisades nuclear power plant belonging to Consumers Energy Co. was shut down yesterday evening after workers performing x-ray inspections discovered "loose parts" that could affect emergency core cooling operability.

In an event report filed with the Nuclear Regulatory Commission, plant operators said it was conducting radiography examinations at 6:00 p.m. and discovered that the internal parts of a check valve were not in place. The valve is a check valve in one of the reactor's emergency core coolant systems.

A second x-ray of the valve determined that all of the parts were inside the valve somewhere, but not where they should be. At 7:01 p.m., operators began to shut down the plant because the loose parts could adversely affect the operability of other components of the emergency core cooling system.

The plant this morning was in "hot shutdown" mode, meaning it can be easily restarted once the loose parts are nailed down.

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